Note 11 - Other Borrowed Money (Details Textual) - USD ($) $ in Thousands	May 01, 2019	Dec. 31, 2019	Dec. 31, 2018
Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Collateral Pledged		$ 111,600	$ 108,600
Federal Home Loan Bank, Advances, General Debt Obligations, Amount of Available, Unused Funds		321,400	252,100
Line of Credit Facility, Current Borrowing Capacity		55,000	43,500
Long-term Line of Credit, Total		0	$ 0
Revolving Credit Facility [Member]
Long-term Line of Credit, Total		$ 5,313
Line of Credit Facility, Maximum Borrowing Capacity	$ 10,000
Proceeds from Lines of Credit, Total	$ 5,300
Revolving Credit Facility [Member] \| Prime Rate [Member]
Debt Instrument, Basis Spread on Variable Rate	0.40%
Term Note [Member]
Debt Instrument, Face Amount	$ 10,000
Debt Instrument, Interest Rate, Stated Percentage	4.70%	4.70%
Notes Payable, Total		$ 9,250
Federal Reserve Bank Advances [Member]
Short-term Debt, Total		$ 0

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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Face (par) amount of debt instrument at time of issuance.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Amount of advances or credit lines available from the Federal Home Loan Bank (FHLB).

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Amount of the collateral pledged in support of federal home loan bank advances outstanding.

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The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Including the current and noncurrent portions, aggregate carrying amount of all types of notes payable, as of the balance sheet date, with initial maturities beyond one year or beyond the normal operating cycle, if longer.

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Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

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